Web roll changer



Dec. 22, 1931. H. v. BALL WEB ROLL CHANGER 2 Sheets-Sheet 1 Filed Sept.13. 1921 Filed Sept. 13. 1927 2 Sheets-Sheet 2 I I I l l HI l V l;, l Ig l I; I,

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v o P l v I '0 "a q Qw 3 a a INVENTOR N T [V Patented 22, 1931 UNITEDSTATES PATENT? OFFICE HARRY V. BALL, OF CONCORD, MASSACHUSETTS, ASSIGNORTO B. EOE & 60., INC 0] NEW YORK, N. Y., A. CORPORATION OF NEW YORK W'EBROLL CHANGER Application filed September 13,1927. Serial No. 219,219.

This invention relates to certain improvements in web roll changingmechanisms employed for uniting a web from a running web roll to a spareweb roll.

In the operation of printing mechanisms and particularly the modern highspeed rotary machines, it is desirable that an expiring web be united toa spare roll in the shortest possible time so as not to slow down orlessen the press product more than is absolutely necessary. Furthermore,in many press rooms, space is a matter of great importance, and it isvery desirable that these web roll changers or renewers occupy as smalla space speed of the running web, these pasting and speed-up devicesbeing located so that they may be moved together into engagement withone or the other of two web rolls, one of the devices acting as a pasterwhen in contact with one roll and as a speedmp device when in contactwith another roll, the other of the devices having complementaryfunctions.

A further object of the invention is to provide a construction of fewparts which can be readily installed in a small space below aprintingpress in a press room, and which may be readily manipulated tobring the.

speed-up and pasting devices into operative position with respect to thedesired web roll.

With these and other objects not specifically referred to in view, theinvention consists in certain novel parts, arrangements andcombinations. which will be described in connection with theaccompanying drawings and the novelfeatures pointed out in the claimshereunto annexed.

In these drawings,

Figure 1 is a side elevation, partly broken away, of a web roll changerembodying the invention, the parts being shown in running position withthe web running to the. press from-the lefthand roll and the spare rollin v position on the right;

Figure 2 is a similar view showing the position of the parts when therunning roll is about to expire and the web is being pasted to the spareroll, and

Figure 3 is an end view looking in the direc tion of arrow 3 of Figure2.

Referring now to these drawings, which 'illustrate a preferredembodiment of the invention, there is shown a support capacitated tocarry a running web roll and a spare web roll. This support may be ofvarious characters, but preferably is one in which'the rolls may belocated closely adjacenteach other, and which is comparatively low downso that it can be used beneath a press where, because of the pressconstruction, but a small space is permitted beneath the pressmechanism. In the particular construction illustrated thereis provided apair of low standards 1,-

2 suitably supported on the press room floor. These standards support ashaft 3 which, at each side, is provided witha pair of similar bent arms4, 5, in the ends of which are for supporting a running roll R and aspare roll S. It will be observed that the shaft 7 place, and thesupporting arms 4, 5' are.

formed so as to bring the rolls closely ad hubs 6, 7 which carry supportbearings 8 jacent each other. These rolls run from the same position inthe arms, that is, a roll loaded into the arm 4 runs from that position,and a roll loaded into the arm- 5 runs from the latter position. Ifdesired, means, not shown, may be provided for slightly rocking theshaft 3 to facilitate the loadingof the rolls into the roll journals.The arms 4, 5 are secured on the shaft in any suitable manner so as toturn therewith, as by keys 9.

In accordance with the invention -web speed-up and pasting devices areemployed for speeding up a new'roll to substantially web speed and forpasting a web running from the expiring roll to thisne'wroll, and

these speed-up devices and the support are arranged to have a relativemovement to effect the operative relation of the devices v an witheither web roll. In the particular construction shown, the speed-up andpasting devices are moved relatively to the support, and are arranged tomove together and to ried, in the particular construction illustratedthere is provided a rock shaft 10 supported in upper extensions 11, 12of the standards 1, 2, before referred to. Keyed on this rock shaft, asby keys 13, is a pair of arms 14, 15, these arms. as shown, beingpreferably located inside the extensions 11, 12. The shaft 10 isoperated by a treadle having treadle arms 16, 17 which terminate in footpedals 18, 19. This treadle is formed on a hub 20 keyed tot-he shaft bya key 21,

and the upper end of this treadle is provided with an extension 22 inwhich works a pin 23 having an operating head 24. The end of this pinextends into a hole 25 formed in an upright lug 26 rising from theextension 11 of the standard 1, before referred to, and is preferablyheld in position by a spring 27, the treadle and associated parts beinglocated outside the standard.

The arms 14, 15, at their upper ends, carry hubs 28, 29 which formsupports for pivot shafts 30, 31 to which is keyed, at 32, a frame inthe form of diverging arms 34, 35, connected by across web 35, whichsupport the speed-up or traction devices and the pasting devices. Whilethese speed-up or traction and pasting devices may be of somewhat Varied construction, as shown, they are in the form of rolls 36, 37mounted on opposite sides of the pivots 30, 31, and between which rollsthe web W runs as it passes to the press. One of these rolls, whererolls are the speedup and pasting devices, acts as a speed-up devicewhen in contact with one ofthe web rolls and as a pasting device when incontact with the other web roll. The other speed-up or traction roll 36has similar functions.

It will be observedthat these rolls, by the swing of the arms14, 15, arebrought into engagement with the web roll in either position. In thebest constructions the parts will be so arranged that the roll whichisacting as a. speed-up device isbrought into contact with the web rollwhich is to be speeded up before the other or pasting roll comes intocontact therewith and brings the old web into contact with such newroll. and preferably this movement of the speed-up and pasting rolls isspring controlled. After the speedup roll has been brought into contactwith the new roll, means are also provided for rotating this roll whilein contact with the web roll so as to bring the web roll up to the speed,of the running web which is to be united or pasted thereto. \Vhile theparticular construction for efiecting this may be somewhat varied,preferably the speed-up roll is rotated by hand and the rolls arebrought into operative position by foot manipulation of the treadlebefore referred to.

As illustrated, the rolls at one side, as at the left in Figure 3, areprovided with a gear 38 which is in mesh with a gear 39 on a shaft 40supported in bearings 41 formed in the frame 33 and in the hub 42 of anarm 43 keyed to the pivot 30, before referred to. Secured to the hub 44of the frame 33 is an arm 45 to which is secured, by a pin 46, one endof a spring 47, the other end of the spring being secured to the hub 48of the arm 14 The shaft 40 is operated by a hand-wheel 49 and it isunderstood that a similar construction, including a hand-wheel 50, isemployed for rotating the other roll.

The operatlon of the device is as follows: The normal running positiqnof the parts 1s that shown in Figure 1, in which the web 1V is beingdrawn off to the press from the roll R, the web passing between thepasting and speed-up rolls 36, 37. The roll R having been exhausted, asshown in Figure 2, the spring pin 23 is withdrawn from the hole 25 andthe operator presses down on the foot pedal 19. This throws the arms 14,15 to the right from the position shown in Figure 1 to the positionshown in Figure 2, which movement of the treadle brings the roll 37 intoengagement with the surface of the spare roll S and brings the pastingroll 36 against the web forcing the web toward the spare 4 roll. Whenthe roll 37 has come into engagement with the spare roll, the press isslowed down and the hand-wheel 49 is rotated by hand, which,-through thespeed-up roll 37, rotates the spare roll bringing theroll up to thespeed of the web. It will be understood that paste or other suitableadhesive has been applied to the surface of the new roll, andthisrotating of the new web roll brings the pasted portion into properposition to be joined to the running web. A further downward movement ofthe pedal 19 rocks the frame around the pivots 30, 31 and brings thepasting roll 36 and the web into contact with the pasted portion of therotating spare roll and effects the paste. This movement of the frameabout the pivots puts the spring 47 under tension and, when the partsare rocked back to normal position by means of the pedal 18, the springcauses the parts to assume theposition shown in Figure 1. The sameoperation and the same sequence of movements take place when a runningweb from a roll in the right-hand position is joined to 'a new roll inthe left-hand position in the construction illustrated in the drawings.When this is done, however, the roll 36 acts as the speedup and the roll37 as the pasting roll, the roll 36 in this instance being rotated bythe hand-wheel 50.

It will be seen by the construction described that a simple andefiicient roll changer has been provided, one in which there are fewparts, and which is simply and easily manipulated to paste a running webto a new web roll. It will also be observed that by operating' the partsas described, so that the speedup roll comes into contact with the webroll before the pasting roll brings the running web into contacttherewith, free rotation of the new web roll is permitted by means ofthe hand-wheel and the connections described, so that this roll isreadily brought up to the required speed.

While the invention has been shown and described in its preferred forms,it will be understood that various changes may be made in the specificconstruction and arrangement of the parts and in the character of thespeed-up andpasting devices without departing from the invention asdefined in the'appended claims.

What I claim is: V

1. In a web roll changer, the combination of a support for supporting arunning web roll and a spare web roll, and speed-up and pasting deviceslocated to be brought, into engagement with either roll, one of saiddevices acting as .a speed-up device when in contact with one web rolland as a paster when in contact with another web roll, the other of saiddevices acting as a paster when brought in contact with one web roll andas a speed-up device when brought in contact with the other roll.

2. In a web roll changer, the combination of a support for supporting arunning 'web roll and a spare web roll in fixed running positions,speed-up and pasting" devices located to be brought into engagement witheither roll, means for moving the devices together into operativerelation with either web roll, and means for rotating the speed-updevice to bring the new roll up to the speed of an expiring web.

3. In a web roll changer, the combination of a support for supporting arunning web roll and a spare web roll, speed-up and pasting deviceslocated to be brought into operative relation with either roll, meansfor supporting the devices so as to move together with the speed-updevice coming first into,

operative relation with the roll, and means for rotating the speed-updevice to bring a new roll up to the speed of an expiring roll.

4. In'a web roll changer, the combination of a support for supporting arunning web roll and a spare web roll in fixed running positions,speed-up and pasting devices between which the web runs, a swingingsupport by which the devices. are carried, means for together so as tobring the speed-up device into contact with a web roll in eitherposition to bring the web roll up to the speed of the running web, andthen bring the pasting device and the web into contact with the webroll, and means for rotating the'speed-up device.

5. In a web roll changer, the combination ot a support for supporting arunning web roll and a spare web roll in fixed running positions, a pairof speed-up and pasting rolls between which the web runs mounted to movetogether, means for moving the rolls to bring both of them intooperative relation with-a web roll in either position, and means forrotating the speed-up roll.

6. In a web roll changer, the combination of a support for supporting arunning web roll and a spare web roll in fixed running positions, a pairof speed-up and pasting rolls between which the web runs, a rockingsupport 7. In a web roll changer, the combination of a support forsupporting a running web roll and a spare web roll in fixed runningpositions, a pair of speed-up and pasting rolls located between the webrolls, a rocking support in which both rolls are mounted, means forrocking the support in either direction, and manually operable means forrotating the speed-up roll in eitherposition.

8; In "a web roll changer, the combination of a support for supporting arunning web roll and ,a spare web'roll in fixed running positions, apair of speed-up and pasting rolls located between the web rolls, arocking support, pivots carried bv the rocking support for supportingthe rolls, and means for rocking the support'so that one of the rolls isfirst brought into contact with a web roll in either position to speedup the web roll, and the other roll is then brought with the web intocontact with the same web roll to paste the web to the speeded'up roll.

9. In a .web roll changer, the combination of a frame for supporting arunning web roll and a spare web roll, a pair of speed-up and pastingrolls located between the. web rolls, a rocking support, roll supportingarms pivoted in the support in which the rolls are mounted, means forrockwhich the rolls are mounted, means for rocking the support to movethe rolls in either direction, gears on the rolls and handwheels forrotating the gears.

11. In a web roll changer, the combination of a frame for supporting arunning web roll and a spare web roll, a shaft supported in the frame,arms on the shaft, piV-- ots in the arms, roll supporting arms securedon the pivots, a pair of speed-up and pasting rolls carried in the rollsupporting arms, a two armed lever for rocking the shaft in eitherdirection, gears on the rolls, and manually operable means for rotatingthe gears.

12. Web pasting. mechanism including in combination a pair of speed-upand pasting rolls, a single swinging support for the rolls, means forswinging the support to bring both the rolls into operative relationwith either of two web rolls located on opposite sides of the support,and means for rotatingthe speed-up roll.

In testimony whereof, I have hereunto set my hand.

HARRY V. BALL.

